J?yyreia.] CONVOLVULACE^. 237 



leaves covered with a close hoary or silky pubescence. Leaves on long stalks, 

 ovate, acute, 3 to 4 in. long, rounded at the base, quite entire ; the upper 

 surface more or less pubescent with small appressed hairs, sometimes almost 

 silky. Cymes of 4 to 6 flowers, on peduncles seldom above an inch long. 

 Bracts either none or very deciduous. Sepals broad, concave and very ob- 

 tuse, very tomentose and 3 or 4 lines long at the time of flowering, enlarged 

 and more loosely hairy outside, red and glabrous inside when in fruit. Co- 

 rolla-tube glabrous, cylindrical, rather longer than the calyx, then enlarged 

 into a campanulate limb above an inch long, hairy on the outer folds, the edge 

 not lobed. Berry globular, crimson. — A. acuta, Benth. in Kew Journ. Bot. 

 v. 57, but probably not of Loureiro. 



Ravines of Mount Victoria, Champion. At Little Hongkong, Wilford ; also Hance. Not 

 known from elsewhere. It is, however, nearly allied to the north-east Indian A. splendens, 

 Sweet. It differs in the leaves less silky underneath but always pubescent above ; in the 

 larger sepals; and in the hairiness of the corolla as well as in its shape, as far as can be 

 judged of in the very few specimens we possess. I had thought it might have been the A. 

 acuta of Loureiro, as it agrees well with his specific description ; but it has not the deeply 

 lobed corolla given by that author as one of the generic characters, and is certainly not the 

 A. f estiva, Wall., referred by Choisy to Loureiro's plant. 



3. IPQ1VLE3A, Linn. 



Corolla campanulate or tubular, with a spreading limb, entire or angular, 

 rarely deeply lobed. Ovary 2- or 3-celled, with 2 ovules in each cell, or 4- 

 celled by the addition of a spurious partition between the ovules. Style 

 filiform. Stigma capitate, entire, or with 2 short round lobes. Fruit a dry 

 capsule. — Twining, prostrate, creeping, or rarely low and erect herbs, occa- 

 sionally woody at the base, or very rarely shrubby. Leaves entire, lobed, 

 or divided. Flowers often large and showy, solitary or more frequently in 

 small cymes in the axils of the leaves. 



A large genus, dispersed over all warm climates, with a very few species extending into 

 N. America, or into extratropical Africa or Australia. 



Leaves digitate, with 5 segments 1. I. quinata. 



Leaves entire, or slightly 3 -lobed. 



Leaves petiolate, thick, broadly emarginate or 2-lobed 2. I. pes-capra. 



Leaves nearly sessile, cordate-lanceolate or linear. Peduncles slender. 



Seeds glabrous 3. I.filicaulis. 



Leaves petiolate, oblong or cordate-lanceolate. Peduncles short. Seeds 



very woolly 4. J. cymosa. 



Leaves cordate-ovate, acute or acuminate. 



Corolla-tube 3 or 4 in. long. Limb flat, 4 or 5 in. diameter . . 5. 7. hona-nox. 

 Corolla not \ in. long. 



Plant glabrous. Peduncles several-flowered. Sepals coriaceous, 



obtuse, narrowed at the base 6. I. chryseidis. 



Plant hairy. Peduncles 1 -flowered. Sepals herbaceous, the outer 



ones cordate at the base 1.1. sinensis. 



(Dr. Hance writes to me that several other species of Ipomcea grow in Hongkong, and 

 amongst them the I. pileata, Roxb., easily known by its flowers capitate within two connate 

 bracts, but as I have seen no specimens, I have been unable to insert them.) 



1. I. quinata, Br.; Chois. in DO. Prod. ix. 385. A rather slender 

 twiner, either glabrous or more frequently with a few spreading hairs on the 

 lower part of the stem and on the petioles. Leaves digitate, with 5 distinct 



